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STMicroelectronics STM32F100VBT6B
- Part No.:
- STM32F100VBT6B
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
STM32F100VBT6B.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,407
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Product details
Overview
STM32F100VBT6B from STMicroelectronics is a 32-bit ARM® Cortex®-M3 microcontroller in LQFP100 package, featuring 128 KB Flash, 8 KB SRAM, 24 MHz max CPU frequency, 1×12-bit ADC (16-channel), and 2×12-bit DACs - deployed in industrial motor control interfaces requiring real-time PWM generation, analog sensing, and serial communication.
For engineers reviewing the STM32F100VBT6B datasheet, STM32F100VBT6B pinout, STM32F100VBT6B application, or STM32F100VBT6B equivalent, key selection criteria include Flash/SRAM capacity, 100-pin I/O count with 5 V tolerance, integrated RTC with VBAT support, and dual DAC capability for closed-loop analog output control.
Technical Context
The device implements a tightly coupled ARM Cortex-M3 core with single-cycle multiply and hardware divide, executing from on-chip Flash at up to 24 MHz (1.25 DMIPS/MHz). Its clock system integrates 4–24 MHz HSE, 8 MHz HSI, 40 kHz LSI, and 32 kHz LSE oscillators, plus a programmable PLL for CPU clock derivation.
Peripherals include seven DMA channels servicing timers, ADC, SPI, I²C, USART, and DACs; nested vectored interrupt controller (NVIC) supporting 68 interrupts; and advanced timer subsystem comprising three 16-bit general-purpose timers, one 16-bit advanced-control timer (6-channel PWM, dead-time, emergency stop), and two basic timers for DAC triggering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 24 MHz max - enables deterministic real-time execution of motor control algorithms with sub-µs interrupt latency. |
| Flash Memory | 128 KB - sufficient for firmware with bootloader, safety monitoring, and field-upgradable control logic. |
| SRAM | 8 KB - supports real-time data buffering for ADC sampling, PID computation, and communication stack operation. |
| ADC | 1 × 12-bit, 1.2 µs conversion, 16 channels - captures analog sensor inputs (current, voltage, temperature) at ≥833 kSPS aggregate rate. |
| DAC | 2 × 12-bit - provides independent analog outputs for reference generation or actuator biasing in dual-loop systems. |
| I/O Pins | 80 fast I/Os, 5 V-tolerant - interfaces directly with legacy 5 V logic, industrial sensors, and optocoupled gate drivers without level shifters. |
| Timers | 12 timers including advanced-control timer with dead-time insertion - generates precise complementary PWM for 3-phase inverter drives. |
Pinout & Package
LQFP100 (14 × 14 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, ECOPACK® certified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Core and I/O domain supply pins - require local 100 nF + 4.7 µF decoupling per VDD/VSS pair for stable 2.0–3.6 V operation. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE15 | General-purpose I/O | 80 configurable GPIOs - support alternate functions for all peripherals (USART, SPI, I²C, TIM, ADC, DAC) and map to 16 external interrupt vectors. |
| OSC_IN / OSC_OUT | External crystal oscillator input/output | Connects to 4–24 MHz quartz crystal - provides high-accuracy system clock source for time-critical control loops. |
| NRST | Active-low reset | Asynchronous reset input - accepts 10 µs minimum pulse width; supports external reset supervisor ICs. |
| VREF+ | Analog reference voltage input | Provides precision reference for ADC/DAC - must be decoupled with 100 nF capacitor to reduce noise coupling into analog paths. |
| VBAT | Backup power supply | Supplies RTC and backup registers during main power loss - enables continuous timekeeping and non-volatile state retention. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable voltage detector (PVD) | Monitors VDD and triggers interrupt or reset when voltage drops below user-configurable threshold - ensures safe shutdown before brownout. |
| Serial wire debug (SWD) | 2-pin debug interface replacing JTAG - reduces PCB footprint while enabling full flash programming, breakpoint, and real-time variable inspection. |
| Temperature sensor | On-die sensor calibrated against VDD - delivers ±1.5°C accuracy over –40°C to +85°C for thermal derating and protection in motor drives. |
| CRC calculation unit | Hardware-accelerated CRC-32 generator - verifies firmware integrity and communication packet validity without CPU overhead. |
| CEC interface | Consumer Electronics Control peripheral - enables HDMI-CEC command routing in smart appliance HMI subsystems. |
Applications
| Industrial Motor Control | Smart Energy Metering |
|---|---|
Use Scenario: 3-phase BLDC motor drive with current sensing, speed feedback, and thermal monitoring. IC Role / Device Role / Timing Role: Main controller executing FOC algorithm, generating 6-channel complementary PWM with dead-time, sampling ADC at 100 kSPS, and managing UART-based diagnostics. Use Value: Integrated advanced timer and dual DAC eliminate external PWM generators and reference DACs, reducing BOM cost and board area by >15%. | Use Scenario: DIN-rail mounted electricity meter with metrology IC interface, LCD driver, and RS-485 communication. IC Role / Device Role / Timing Role: System manager handling pulse counting from metrology IC, driving segment LCD via GPIO remapping, and managing isolated RS-485 transceiver timing. Use Value: 80 5 V-tolerant I/Os interface directly with metrology IC and RS-485 transceivers, avoiding level translators and simplifying layout. |
| Medical Infusion Pump | Building Automation Controller |
Use Scenario: Battery-powered infusion pump requiring precise flow rate control, battery monitoring, and alarm signaling. IC Role / Device Role / Timing Role: Real-time controller managing stepper motor sequencing, reading pressure/flow sensors via ADC, and generating audible alerts using DAC-driven buzzer. Use Value: Dual 12-bit DACs enable simultaneous audio tone generation and analog pressure reference output - no external audio codec required. | Use Scenario: HVAC zone controller with temperature/humidity sensing, relay actuation, and BACnet MS/TP communication. IC Role / Device Role / Timing Role: Central node acquiring sensor data via I²C, driving relays through GPIOs, and implementing UART-based BACnet physical layer with LIN-capable USART. Use Value: Three USARTs with LIN support allow native integration with legacy HVAC bus protocols without external protocol converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F072RBT6 | ARM Cortex-M0, 48 MHz, 128 KB Flash, 16 KB SRAM, no DAC, 1×12-bit ADC (16 ch) | Lacks dual DAC and advanced timer - unsuitable for analog output-critical or high-resolution PWM applications. | Select only if cost sensitivity outweighs need for DACs and advanced PWM features. |
| STM32F103VBT6 | Same LQFP100 package, 256 KB Flash, 48 KB SRAM, identical peripheral set except higher Flash/SRAM and no PVD | Higher memory enables larger RTOS-based firmware; lacks PVD - requires external supervisor for brownout detection. | Choose when firmware complexity exceeds 128 KB or when extended RAM for communication buffers is needed. |
Compared with STM32F072RBT6, STM32F100VBT6B provides essential analog output capability and advanced PWM control; versus STM32F103VBT6, it trades memory headroom for integrated programmable voltage detection - critical for fail-safe operation in battery-backed industrial nodes.
Availability
STM32F100VBT6B is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, medical infusion pumps, and building automation controllers requiring stable component supply across multi-year production cycles.
Supply support for STM32F100VBT6B includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.
The STM32F100 value line targets cost-sensitive, resource-constrained embedded applications where low-power operation, rich analog integration (ADC/DAC), and robust industrial I/O (5 V tolerance, VBAT, PVD) are mandatory design requirements.
FAQ
What is the maximum operating temperature range for STM32F100VBT6B?
The STM32F100VBT6B is rated for industrial temperature range: –40°C to +85°C ambient. This is validated per ST's specification table (Section 5.3.1) and applies to all electrical characteristics including Flash programming, ADC accuracy, and timer jitter. Thermal derating is not required within this range under specified VDD and load conditions.
Does STM32F100VBT6B support USB connectivity?
No, STM32F100VBT6B does not include a USB peripheral. It offers up to eight communication interfaces: up to two I²C, three USARTs (with LIN/IRDA/ISO7816), two SPIs, and one CEC port. USB functionality requires migration to STM32F103 or higher-series devices with integrated USB FS PHY.
Can the internal 8 MHz RC oscillator be used as the system clock source?
Yes, the factory-trimmed 8 MHz internal RC oscillator (HSI) can serve as the system clock source. It achieves ±1% accuracy after trimming and supports automatic calibration via the RCC_CR register. However, for applications requiring precise timing (e.g., UART baud rate stability <1%), an external crystal (4–24 MHz) is recommended.
How many external interrupt lines are available on STM32F100VBT6B?
STM32F100VBT6B supports 16 external interrupt/event lines (EXTI0–EXTI15), each configurable to trigger on rising/falling/both edges. All 80 GPIO pins can be mapped to these 16 lines via the AFIO_EXTICR registers, enabling flexible interrupt routing for buttons, sensors, or fault signals without dedicated pins.
STM32F100VBT6B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-LQFP
- Series:
- STM32F1
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 24MHz
- Connectivity:
- I2C, IrDA, LINbus, SPI, UART/USART
- Peripherals:
- DMA, PDR, POR, PVD, PWM, Temp Sensor, WDT
- Number of I/O:
- 80
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 3.6V
- Data Converters:
- A/D 16x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F100VBT6B FAQ
1.How can I place an order for STM32F100VBT6B through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F100VBT6B on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM32F100VBT6B reliable?
The price and inventory of STM32F100VBT6B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F100VBT6B is usually 5 days.
3.What payment methods are accepted for STM32F100VBT6B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F100VBT6B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F100VBT6B?
STM32F100VBT6B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F100VBT6B order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM32F100VBT6B?
For technical support, including STM32F100VBT6B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F100VBT6B requirements.
6.How does Aetrix verify that STM32F100VBT6B is sourced from the original manufacturer or authorized distributors?
All STM32F100VBT6B products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32F100VBT6B meets industry standards.
7.What is the process for return or replacement of STM32F100VBT6B?
All STM32F100VBT6B units undergo pre-shipment inspection (PSI). If there is an issue with STM32F100VBT6B, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM32F100VBT6B part is unused and in its original packaging.
Return procedure for STM32F100VBT6B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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